Here is the full list of all 39 Sherlock Holmes Chapter One achievements.
Get every achievement.
Remember everything.
Fight in all of the bandit lairs.
Kill fifteen enemies.
Kill five enemies.
Talk to Dilwyn in his hat.
Uncover all of the treasures.
Get justice for Fabio.
Lift the curtain on bohemian life.
Refurbish the entire manor.
Open the cabinet of curiosities.
Complete all Cordona Stories.
Investigate the third accident.
Present accurate evidence in all accusations.
Interrogate every suspect in the safe murder as a police officer.
Talk to The Pipe in the correct disguise.
Take pity on a poor girl.
Follow the rules of the Blind Duelling Club.
Always advocate for the refugees.
Punch first, ask questions later.
Spare the landlady's feelings.
Refuse to help Mycroft.
Disappoint Mycroft.
Find the book.
Hold an eel by the tail.
Save Goliath's life.
Open Violet's room.
Acquire Sherlock's famous violin.
Arrest twenty-five enemies.
Disorient ten enemies with the snuffbox.
Find all the books in the Bazookaeology trilogy.
Open Sherlock's room.
Let an old man have his retirement.
Arrest ten enemies.
Solve all the cases for the police.
Prank Mrs. Nini.
Solve the first case on Cordona.
Eavesdrop on your first piece of gossip.
Try to take the easy way out.